Oklahoma earthquakes

M1.8 earthquake 10 km ESE of Chester, Oklahoma

A magnitude 1.8 earthquake struck 10 km ESE of Chester, Oklahoma on Sat, Jul 31, 2021, 4:32 PM CDT (21:32 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M1.9 20 km NNE of Woodward, Oklahoma. This one was a foreshock.

Seiling forecastMore in Oklahoma

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2021-07-31 21:32:41 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
36.197° N, 98.804° W
Region
Oklahoma
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Magnitude uncertainty
±0.25
Station coverage gap
73°
Stations used
53

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 1.68 km NNE of Quinlan, Oklahoma · 1877 days ago · 8 km deep · 41 km away
  2. 1.920 km NNE of Woodward, Oklahoma · 1877 days ago · 5 km deep · 65 km away
  3. 1.58 km E of Nescatunga, Oklahoma · 1875 days ago · 8 km deep · 91 km away
  4. 3.116 km SE of Waynoka, Oklahoma · 1875 days ago · 8 km deep · 30 km away · felt by 3
  5. 1.96 km NNE of Ames, Oklahoma · 1875 days ago · 8 km deep · 58 km away
  6. 1.91 km NW of Kremlin, Oklahoma · 1874 days ago · 8 km deep · 95 km away · felt by 1
  7. 2.32 km SE of Meno, Oklahoma · 1873 days ago · 7 km deep · 61 km away
  8. 2.414 km SSE of Waynoka, Oklahoma · 1872 days ago · 6 km deep · 29 km away · felt by 1
  9. 2.06 km N of Cherokee, Oklahoma · 1869 days ago · 7 km deep · 80 km away
  10. 1.95 km N of Ames, Oklahoma · 1867 days ago · 7 km deep · 58 km away
  11. 1.94 km WSW of Aline, Oklahoma · 1865 days ago · 7 km deep · 43 km away
  12. 2.18 km S of Byron, Oklahoma · 1863 days ago · 5 km deep · 85 km away
  13. 2.33 km SE of Meno, Oklahoma · 1858 days ago · 7 km deep · 61 km away
  14. 1.89 km NNE of Quinlan, Oklahoma · 1853 days ago · 7 km deep · 41 km away
  15. 1.95 km N of Ames, Oklahoma · 1851 days ago · 8 km deep · 57 km away
  16. 2.02 km SSW of Cherokee, Oklahoma · 1850 days ago · 7 km deep · 71 km away
  17. 2.02 km ENE of Hennessey, Oklahoma · 1850 days ago · 6 km deep · 84 km away
  18. 1.76 km SSW of Lahoma, Oklahoma · 1849 days ago · 7 km deep · 64 km away
  19. 1.89 km NNE of Quinlan, Oklahoma · 1847 days ago · 8 km deep · 40 km away
  20. 2.09 km NNE of Quinlan, Oklahoma · 1847 days ago · 8 km deep · 41 km away
  21. 1.69 km NNE of Quinlan, Oklahoma · 1847 days ago · 8 km deep · 41 km away
  22. 1.59 km NNE of Quinlan, Oklahoma · 1847 days ago · 8 km deep · 40 km away
  23. 2.89 km NNE of Quinlan, Oklahoma · 1847 days ago · 8 km deep · 41 km away · felt by 1
  24. 2.19 km NNE of Quinlan, Oklahoma · 1846 days ago · 8 km deep · 41 km away · felt by 1
  25. 2.12 km SE of Meno, Oklahoma · 1846 days ago · 7 km deep · 61 km away · felt by 1
  26. 3.02 km SSW of Cherokee, Oklahoma · 1845 days ago · 5 km deep · 71 km away · felt by 7
  27. 1.63 km SSE of Meno, Oklahoma · 1845 days ago · 6 km deep · 61 km away
  28. 1.93 km SSE of Meno, Oklahoma · 1845 days ago · 7 km deep · 61 km away
  29. 1.62 km SE of Meno, Oklahoma · 1845 days ago · 6 km deep · 61 km away
  30. 2.14 km WSW of Aline, Oklahoma · 1843 days ago · 9 km deep · 43 km away
  31. 2.66 km NNE of Ames, Oklahoma · 1842 days ago · 8 km deep · 58 km away · felt by 1
  32. 1.611 km SSW of Dacoma, Oklahoma · 1841 days ago · 5 km deep · 45 km away
  33. 1.72 km SSE of Meno, Oklahoma · 1841 days ago · 7 km deep · 60 km away
  34. 1.67 km E of Nescatunga, Oklahoma · 1838 days ago · 8 km deep · 91 km away
  35. 2.07 km E of Nescatunga, Oklahoma · 1837 days ago · 8 km deep · 91 km away
  36. 1.69 km WSW of Ringwood, Oklahoma · 1836 days ago · 7 km deep · 44 km away
  37. 2.53 km SE of Nescatunga, Oklahoma · 1836 days ago · 6 km deep · 85 km away · felt by 2
  38. 1.97 km E of Nescatunga, Oklahoma · 1836 days ago · 8 km deep · 91 km away
  39. 1.916 km SE of Waynoka, Oklahoma · 1829 days ago · 8 km deep · 30 km away
  40. 1.64 km NE of Cherokee, Oklahoma · 1829 days ago · 5 km deep · 78 km away
  41. 3.87 km E of Nescatunga, Oklahoma · 1829 days ago · 7 km deep · 91 km away · felt by 89
  42. 3.67 km E of Nescatunga, Oklahoma · 1829 days ago · 8 km deep · 91 km away · felt by 10
  43. 3.08 km E of Nescatunga, Oklahoma · 1829 days ago · 7 km deep · 91 km away · felt by 5
  44. 2.27 km E of Nescatunga, Oklahoma · 1829 days ago · 8 km deep · 91 km away · felt by 2
  45. 1.66 km N of Ames, Oklahoma · 1827 days ago · 8 km deep · 56 km away
  46. 1.710 km ESE of Dover, Oklahoma · 1827 days ago · 7 km deep · 94 km away
  47. 1.66 km SSW of Lahoma, Oklahoma · 1826 days ago · 7 km deep · 64 km away
  48. 1.68 km E of Nescatunga, Oklahoma · 1826 days ago · 8 km deep · 92 km away
  49. 1.65 km N of Ames, Oklahoma · 1825 days ago · 8 km deep · 57 km away
  50. 2.77 km NNE of Ames, Oklahoma · 1824 days ago · 7 km deep · 59 km away · felt by 5
  51. 1.78 km E of Nescatunga, Oklahoma · 1824 days ago · 8 km deep · 91 km away
  52. 1.85 km N of Quinlan, Oklahoma · 1822 days ago · 8 km deep · 40 km away

Before

  1. 1.917 km SSE of Waynoka, Oklahoma · 1881 days ago · 8 km deep · 27 km away
  2. 2.03 km E of Jet, Oklahoma · 1881 days ago · 5 km deep · 79 km away · felt by 1
  3. 1.58 km NNE of Quinlan, Oklahoma · 1882 days ago · 7 km deep · 40 km away
  4. 1.58 km NNE of Quinlan, Oklahoma · 1883 days ago · 7 km deep · 41 km away
  5. 1.68 km NNE of Quinlan, Oklahoma · 1884 days ago · 8 km deep · 41 km away
  6. 1.917 km SSE of Waynoka, Oklahoma · 1885 days ago · 7 km deep · 27 km away
  7. 2.05 km N of Quinlan, Oklahoma · 1885 days ago · 8 km deep · 40 km away
  8. 1.98 km NNE of Quinlan, Oklahoma · 1885 days ago · 8 km deep · 40 km away
  9. 2.317 km SSE of Waynoka, Oklahoma · 1886 days ago · 8 km deep · 28 km away
  10. 2.33 km SE of Meno, Oklahoma · 1887 days ago · 7 km deep · 61 km away
  11. 1.68 km NNE of Quinlan, Oklahoma · 1888 days ago · 7 km deep · 40 km away
  12. 1.95 km E of Enid, Oklahoma · 1889 days ago · 5 km deep · 91 km away
  13. 1.69 km NNE of Quinlan, Oklahoma · 1889 days ago · 7 km deep · 41 km away
  14. 1.63 km SE of Meno, Oklahoma · 1889 days ago · 6 km deep · 61 km away
  15. 1.63 km W of Douglas, Oklahoma · 1889 days ago · 7 km deep · 98 km away
  16. 1.68 km NNE of Quinlan, Oklahoma · 1889 days ago · 8 km deep · 41 km away · felt by 2
  17. 1.63 km SE of Meno, Oklahoma · 1890 days ago · 6 km deep · 61 km away
  18. 2.09 km NNE of Quinlan, Oklahoma · 1891 days ago · 8 km deep · 41 km away
  19. 2.19 km NNE of Quinlan, Oklahoma · 1892 days ago · 8 km deep · 41 km away
  20. 1.96 km SSW of Lahoma, Oklahoma · 1892 days ago · 7 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ok2021oxdu. Read Tue, Sep 22, 2026, 3:10 PM UTC.